Cultural Structure of Solar Terms and Traditional Festivals

Solar terms and festivals differ from and relate to each other in terms of application scope and cultural structure.The cultural association and application of the 24 Solar Terms are studied in the areas including philosophy,farming and society,and are exhibited in the natural convergence of views on space and time,life and customs,as well as the facilitation of agricultural practice.The connotations of traditional Chinese festivals concern basic areas such as beliefs,rites,language,symbols,diets and art,which are exhibited in the co-existent "festival tokens," "festival events," "festival messages," "festival symbols," "festival food" and "festival art forms." Festivals feature fixed and periodic occurrence and multi-channel cultural inheritance.

Influence of phosphorus availability on the community structure and physiology of cultured biofilms

Biofilms have important effects on nutrient cycling in aquatic ecosystems.However,publications about the community structure and functions under laboratory conditions are rare.This study focused on the developmental and physiological properties of cultured biofilms under various phosphorus concentrations performed in a closely controlled continuous flow incubator.The results showed that the biomass（Chl a）and photosynthesis of algae were inhibited under P-limitation conditions,while the phosphatase activity and P assimilation rate were promoted.The algal community structure of biofilms was more likely related to the colonization stage than with the phosphorus availability.Cyanobacteria were more competitive than other algae in biofilms,particularly when cultured under low P levels.A dominance shift occurred from non-filamentous algae in the early stage to filamentous algae in the mid and late stages under P concentrations of 0.01,0.1 and 0.6 mg/L.However,the total N content,dry weight biomass and bacterial community structure of biofilms were unaffected by phosphorus availability.This may be attributed to the low respiration rate,high accumulation of extracellular polymeric substances and high alkaline phosphatase activity in biofilms when phosphorus availability was low.The bacterial community structure differed over time,while there was little difference between the four treatments,which indicated that it was mainly affected by the colonization stage of the biofilms rather than the phosphorus availability.Altogether,these results suggested that the development of biofilms was influenced by the phosphorus availability and/or the colonization stage and hence determined the role that biofilms play in the overlying water.

Theories of Culture

"Culture" is such a broad concept which is understood and defined differently by different people and has been remaining a focus for research.Some view culture as skills,values,understandings,knowledge or ways of being achieved as members of society and it is acquired and transmitted over generations;some regard culture as meaning which is established and constructed in practice and it is the context of production of new meaning and constraint of action.In this article it will focus on two theories of culture,namely,Cultural Relativism and Cultural Structuralism,and will illustrate the general ideas,main representatives and their arguments of these two theories.

中国城市规划传统的现代意义

China has an outstanding urban planning tradition, which lays down the historical foundation for a theoretical planning system with Chinese characteristics. Thus, revealing the significance of the Chinese urban planning tradition in a modern context becomes the key link. Based on the historical experience of Chinese urban planning, this paper attempts to reveal the significance of traditional Chinese urban planning in a modern context from four aspects: urban planning integrated with the natural landscape, urban humanistic and cultural space planning, urban heritage conservation and culture inheritance, and urban planning during an economically prosperous period. Traditional Chinese urban planning emphasizes the integration between city and natural landscape and is good at setting up a baseline of urban order based on the ingenuity of landscape. Moreover, Chinese urban planning focuses on the design of humanistic and cultural space structures as well as the role of urban planning in the cohesion of "the will of the people," inspiration of cultural pursuit, and historical spirit inheritance. Besides, Chinese planning tradition pays attention to the transformation of urban space through economic development and emphasizes the fundamental principle that new space should adhere to the original spatial order.